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Enhanced Electromechanical Response in Defective Sm and Nd Co-doped Ceria
Applied Physics · Submitted 16 Jun 2020
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim These outcomes support the hypothesis that electrostriction is strongly influenced by the local environment of oxygen vacancy and by the ionic migration blocking factors built-in the microstructure.
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The abstract, sentence by sentence
Highly oxygen defective cerium oxide, e.g. Gd-doped ceria is a sustainable non-classical electrostrictor with electromechanical properties that are superior to lead-based piezoelectric metal oxides. Here, we report electrostriction in co-doped ceria (Sm, Nd) with a nominally low short-range vacancy-dopant association energy. Such a strategy results in a higher electrostrictive strain coefficient at lower-frequencies, and unexpected electromechanical strain saturation and relaxation effects. These outcomes support the hypothesis that electrostriction is strongly influenced by the local environment of oxygen vacancy and by the ionic migration blocking factors built-in the microstructure.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Highly oxygen defective cerium oxide, e.g. Gd-doped ceria is a sustainable non-classical electrostrictor with electromechanical properties that are superior to lead-based piezoelectric metal oxides. | background 1.00 | 0.07 | 0.06 | asserted 1.00 |
| s1 | Here, we report electrostriction in co-doped ceria (Sm, Nd) with a nominally low short-range vacancy-dopant association energy. | contribution 1.00 | 0.93 | 0.10 | asserted 1.00 |
| s2 | Such a strategy results in a higher electrostrictive strain coefficient at lower-frequencies, and unexpected electromechanical strain saturation and relaxation effects. | result 1.00 | 0.87 | 0.35 | asserted 1.00 |
| s3 | These outcomes support the hypothesis that electrostriction is strongly influenced by the local environment of oxygen vacancy and by the ionic migration blocking factors built-in the microstructure. | interpretation 1.00 | 0.49 | 0.73 | hedged possibility 0.63 |
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Original abstract
Highly oxygen defective cerium oxide, e.g. Gd-doped ceria is a sustainable non-classical electrostrictor with electromechanical properties that are superior to lead-based piezoelectric metal oxides. Here, we report electrostriction in co-doped ceria (Sm, Nd) with a nominally low short-range vacancy-dopant association energy. Such a strategy results in a higher electrostrictive strain coefficient at lower-frequencies, and unexpected electromechanical strain saturation and relaxation effects. These outcomes support the hypothesis that electrostriction is strongly influenced by the local environment of oxygen vacancy and by the ionic migration blocking factors built-in the microstructure.
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